The Southwire Building Wire is a high-quality copper wire with a 10 AWG wire size and a green color sheath. This stranded wire is designed for building applications and is sold in a length of 500 feet. It is ideal for use in electrical systems and is manufactured in the US by Southwire, a trusted brand in the industry. With a weight of 19.4 lbs, this wire is durable and reliable for various electrical projects.